[Intel-gfx] [drm-intel:for-linux-next 746/778] drivers/gpu/drm/i915/intel_audio.c:405:45: sparse: incorrect type in argument 2 (different modifiers)

[kbuild test robot]

tree:   git://anongit.freedesktop.org/drm-intel for-linux-next
head:   22f146cd928e834c7eec724b6816e24cc29b59fb
commit: 67d92bb51cff3596b0ee660eef26f5c7017e3509 [746/778] drm/i915: Constify adjusted_mode
reproduce:
  # apt-get install sparse
  git checkout 67d92bb51cff3596b0ee660eef26f5c7017e3509
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> drivers/gpu/drm/i915/intel_audio.c:405:45: sparse: incorrect type in argument 2 (different modifiers)
   drivers/gpu/drm/i915/intel_audio.c:405:45:    expected struct drm_display_mode *mode
   drivers/gpu/drm/i915/intel_audio.c:405:45:    got struct drm_display_mode const *adjusted_mode
   drivers/gpu/drm/i915/intel_audio.c:420:58: sparse: incorrect type in argument 2 (different modifiers)
   drivers/gpu/drm/i915/intel_audio.c:420:58:    expected struct drm_display_mode *mode
   drivers/gpu/drm/i915/intel_audio.c:420:58:    got struct drm_display_mode const *adjusted_mode
   drivers/gpu/drm/i915/intel_audio.c: In function 'intel_audio_codec_enable':
   drivers/gpu/drm/i915/intel_audio.c:405:38: warning: passing argument 2 of 'drm_select_eld' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     connector = drm_select_eld(encoder, adjusted_mode);
                                         ^
   In file included from drivers/gpu/drm/i915/intel_audio.c:30:0:
   include/drm/drm_edid.h:330:23: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *'
    struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
                          ^
   drivers/gpu/drm/i915/intel_audio.c:420:51: warning: passing argument 2 of 'drm_av_sync_delay' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
                                                      ^
   In file included from drivers/gpu/drm/i915/intel_audio.c:30:0:
   include/drm/drm_edid.h:328:5: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *'
    int drm_av_sync_delay(struct drm_connector *connector,
        ^

vim +405 drivers/gpu/drm/i915/intel_audio.c

69bfe1a9b Jani Nikula   2014-10-27  389  /**
69bfe1a9b Jani Nikula   2014-10-27  390   * intel_audio_codec_enable - Enable the audio codec for HD audio
69bfe1a9b Jani Nikula   2014-10-27  391   * @intel_encoder: encoder on which to enable audio
69bfe1a9b Jani Nikula   2014-10-27  392   *
69bfe1a9b Jani Nikula   2014-10-27  393   * The enable sequences may only be performed after enabling the transcoder and
69bfe1a9b Jani Nikula   2014-10-27  394   * port, and after completed link training.
69bfe1a9b Jani Nikula   2014-10-27  395   */
69bfe1a9b Jani Nikula   2014-10-27  396  void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
7c10a2b58 Jani Nikula   2014-10-27  397  {
33d1e7c6f Jani Nikula   2014-10-27  398  	struct drm_encoder *encoder = &intel_encoder->base;
33d1e7c6f Jani Nikula   2014-10-27  399  	struct intel_crtc *crtc = to_intel_crtc(encoder->crtc);
67d92bb51 Ville Syrjälä 2015-09-08  400  	const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
7c10a2b58 Jani Nikula   2014-10-27  401  	struct drm_connector *connector;
7c10a2b58 Jani Nikula   2014-10-27  402  	struct drm_device *dev = encoder->dev;
7c10a2b58 Jani Nikula   2014-10-27  403  	struct drm_i915_private *dev_priv = dev->dev_private;
7c10a2b58 Jani Nikula   2014-10-27  404  
b8abe859c Ville Syrjälä 2015-09-08 @405  	connector = drm_select_eld(encoder, adjusted_mode);
7c10a2b58 Jani Nikula   2014-10-27  406  	if (!connector)
7c10a2b58 Jani Nikula   2014-10-27  407  		return;
7c10a2b58 Jani Nikula   2014-10-27  408  
7c10a2b58 Jani Nikula   2014-10-27  409  	DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7c10a2b58 Jani Nikula   2014-10-27  410  			 connector->base.id,
7c10a2b58 Jani Nikula   2014-10-27  411  			 connector->name,
7c10a2b58 Jani Nikula   2014-10-27  412  			 connector->encoder->base.id,
7c10a2b58 Jani Nikula   2014-10-27  413  			 connector->encoder->name);

:::::: The code at line 405 was first introduced by commit
:::::: b8abe859c9d61101100cf9d87fe56defd668e42a drm/i915: Always call the adjusted mode 'adjusted_mode'

:::::: TO: Ville Syrjälä <ville.syrjala at linux.intel.com>
:::::: CC: Daniel Vetter <daniel.vetter at ffwll.ch>

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